Should the brake fluid be changed or not, and what is the function of the brake fluid?

It needs to be replaced regularly. Brake fluid, also known as brake fluid, is a functional liquid that transmits pressure in the vehicle braking system and enables the braking system on the wheels to achieve braking action, and its main role is to transmit energy, heat dissipation, anti-corrosion, anti-rust and lubrication.

The performance requirements for brake fluid are:

1. Good viscosity and temperature, low freezing point, and good fluidity at low temperature.

2. The boiling point is high, and there is no gas resistance at high temperature.

3. The quality changes little during use, and does not cause corrosion and deterioration of metal parts and rubber parts.

Extended Information: Precautions for Buying Brake Fluid:

1. Look at the viscosity and color of the product, the brake fluid is too thin to use, there is no color, transparent can not be used (generally the color of the qualified brake fluid is light yellow or dark yellow), the qualified brake fluid is obviously more viscous than water, it looks like diluted honey, and the diffusion speed is slow when poured on the glass plate.

2. The viscosity of inferior brake fluid is as thin as water, and the diffusion speed of pouring a small amount on the glass plate is fast, and you can feel that there is no consistency when you dip your fingers.

3. Comparison, cost decision, quality determination. The raw material of qualified brake fluid is mainly the basic raw material of petroleum processing - ethylene oxide, which is polymerized from ethylene oxide into polyethylene glycol monoether. This results in a high material cost for qualified brake fluid.

Changan Yuexiang V7 do brake system maintenance, two years or 30,000 kilometers must replace the brake oil, brake oil is very easy to absorb the moisture in the air and make the water content exceed the standard, the boiling point will drop directly, continuous use of braking will produce high temperature, is the oxidation and evaporation of water in the brake oil to form gas resistance, so that the braking distance is extended or even out of control!

The volume of the brake fluid will change with the change of temperature, so the brake fluid reservoir is equipped with a vent, and the air sucked in from the hole contains moisture or impurities, and the water will be absorbed or dissolved by the brake fluid, so the boiling point of the brake fluid containing water will be reduced. When the car is braking for a long time, the temperature of the braking system rises, and the brake line is easy to produce air resistance, and the air is compressed, resulting in the possibility of a decrease in braking force or brake failure. Therefore, for your driving safety, the brake fluid must be changed regularly.

The function of brake fluid is to transfer energy, dissipate heat, prevent corrosion, rust and lubricate.

Brake fluid doesn't necessarily need to be changed regularly. In general, for ordinary family cars, it is recommended to check the brake fluid every 4 years or so.

The only criterion for judging whether the brake fluid meets the replacement standard is the moisture content of the brake fluid. It is usually recommended that the owner drive to a professional maintenance company, and a professional technician will use a brake fluid moisture content tester to make an accurate measurement of the vehicle's brake fluid. As long as the moisture content in the brake fluid is greater than 5%, the brake fluid is judged to be unusable and needs to be replaced immediately.

If the moisture content of the brake fluid is found to be greater than 3% through inspection, it means that the brake fluid has begun to deteriorate significantly, although it has not reached the moisture content of 5%, but the owner needs to pay attention to the usual brake use, ready to replace it as soon as possible.

Because the moisture content in the brake fluid determines the boiling point of the brake oil, the higher the moisture content, the lower the boiling point of the brake oil, and it is easy to cause the brake oil to boil and lose the brake during the continuous braking process, which is very dangerous.

Brake fluid change interval: 2 years or 40,000 km. (The quality of the brake fluid is related to the safety of driving).

1. Brake fluid is very important, and it is better to replace it regularly. When your car is being serviced and the oil is changing, it is best to change the brake fluid by the way;

2. The steering machine does not need to be replaced regularly, but when the car is overhauled or inspected annually, find an experienced master to help you school, adjust the clearance on OK, and generally have no problem with good steering machine maintenance for more than 3 years.

Although the replacement cycle of brake fluid is relatively long, if the brake fluid is not replaced in time, it will cause the brake oil to be turbid, the boiling point will drop, and the effect will become worse, resulting in brake failure! Because the brake fluid system will always be worn, and at the same time, the brake fluid will absorb the moisture in the air, oxidation, deterioration and other imagination, which will easily lead to the deterioration and expiration of the brake oil, and the use effect will deteriorate.

Therefore, the timely replacement of brake fluid is related to driving safety and should not be careless, so the brake fluid should at least be decided whether to replace it according to the actual situation, of course, it is best to change it regularly and preventively.

The typical brake fluid change interval is two years. The brake fluid that is still used after the specified use time is not too much of a problem for daily driving, and the owner will not feel strange. But when the car is going down a hill or driving aggressively, the high temperature generated by the braking system is likely to cause the brake fluid to boil.

The bubbles generated by boiling are in the brake line, and in serious cases, it will affect the work of the brake system. At this time, the brakes will fail, and in severe cases, the steam at high temperatures will even crack the brake oil pipe. The brake fluid itself has strong water absorption characteristics, it will absorb the moisture in the surrounding air, and the accumulated moisture into the brake fluid will directly cause the boiling point of the brake fluid to drop, so that the braking force will decrease, affecting the performance of the brake.

The general brake fluid of the car needs to be replaced, the brake fluid of the car is generally three months to half a year, the general brake fluid of the car needs to be replaced, and the brake fluid of the car is generally three months to six months, and it must be replaced once.

The normal replacement cycle of brake fluid is 2 years or 40,000km first, the dry climate in the north can be appropriately extended for one and a half years, but the air humidity in the south is high, and it should be replaced in time according to the cycle to ensure the safety of the car.

The general brake fluid of the car is not needed, because the brake oil, engine oil and gasoline are all together, so the brake fluid should not be changed.

For the brake fluid of the car, of course, it also needs to be replaced, because after all, after a long time, this oil will not work, and it is not so big.

Do I need to change the general brake fluid of the car? The general brake fluid of the car definitely needs to be changed, because the more years the car is driven, the more frequent it will be changed.

Yes, follow your car's maintenance manual for replacement!

Do I need to change the general brake fluid of the car? I think this situation needs to be changed.

If the moisture exceeds the standard, it needs to be replaced

Generally, the replacement cycle of brake fluid is 4 to 5 years, if you continue to use it beyond the replacement cycle, although the impact on the vehicle is not great, but if the vehicle walks downhill on the mountain road for a long time or drives intensely for a long time, the high temperature generated by the brake pads may make the brake fluid gradually boil.

The bubbles generated by boiling will be hidden in the brake oil pipe, which will directly affect the braking effect in serious cases, and it is very likely that the brake will fail. If the steam in the brake hose is difficult to retreat, it will directly burst the brake hose, and the consequences are unimaginable. The brake fluid itself has strong water absorption, which can completely absorb the moisture in the surrounding air, and after a long time, the moisture will enter the brake fluid, so that the boiling point will drop, and then the braking force will be attenuated, thus affecting the braking performance of the brake.

Car brakes.

The oil copy needs to be changed.

The brake fluid change interval can be used according to the vehicle's BAI.

du, mileage, driving road conditions, braking agility, etc., can be appropriately advanced or delayed for a period of time.

Because the new car is the original brake fluid, the quality is better, and the use time can be appropriately extended, and it can be replaced in about 5 years. The replacement time of a normal vehicle is about 2-3 years and about 50,000 kilometers.

Brake fluid is also called brake fluid or force fluid, and the most likely deterioration of the whole car oil is brake fluid. Because the brake fluid has strong water absorption, the brake fluid after water absorption is easy to deteriorate, and the boiling point is reduced, which directly affects the braking effect.

Zhanjiang Jinfu SAIC Volkswagen.

But many old drivers say that they haven't changed the brake fluid, and there is no problem with the brakes, and it doesn't matter if they change the brake fluid or not. The braking system operates in a relatively sealed environment, and the brake fluid basically does not absorb water and fails. In fact, the deterioration of brake fluid is a relatively long process, which is why brake fluid generally has to be replaced every 2 years or 50,000 kilometers, although the brake system is relatively sealed, but it is not that it does not absorb water, but the process is relatively slow.

In addition, in areas with different humidity, the deterioration cycle is also long. For example, Zhanjiang, as a coastal city in the south, has heavy humidity, and the replacement cycle will be shortened accordingly.

Zhanjiang Jinfu SAIC Volkswagen.

The brake fluid has deteriorated, not that there is no braking force at all, but there is a process from "hard to soft". After driving the car for a long time, the brakes become soft, in addition to the wear and tear of the brake discs and calipers, there is also the problem of brake fluid. This can be felt in the feel of the brakes, and it also increases the chance of brake failure.

Zhanjiang Jinfu SAIC Volkswagen.

Deterioration of brake fluid will increase the chance of brake failure, which is actually a matter of probability. Like an airbag, you may not have a chance to use it once when the car is scrapped, but if the quality of the airbag is not good, once an accident occurs, it will not be opened, it is a gamble!

Zhanjiang Jinfu SAIC Volkswagen.

Hope it helps! Practitioners from Zhanjiang Jinfu Automobile!

1. Generally speaking, it is recommended to change the brake fluid every 2 years, but this cycle can be long or short according to the use. Brake fluid replacement.

Cycle, the official maintenance cycle of each brand of car is different, which is related to the brand and model of brake fluid, brake fluid has a certain corrosiveness, water absorption is also relatively strong, now many repair stations have special tools to detect the moisture content of brake oil, you can do a test, to see if it needs to be replaced. The brake fluid must be replaced regularly when it is time for maintenance, and it is best to refer to the maintenance cycle specified by the manufacturer for maintenance.

Changan Yuexiang V7 do brake system maintenance, two years or 30,000 kilometers must replace the brake oil, brake oil is very easy to absorb the moisture in the air and make the water content exceed the standard, the boiling point will drop directly, continuous use of braking will produce high temperature, is the oxidation and evaporation of water in the brake oil to form gas resistance, so that the braking distance is extended or even out of control!

Need to change, brake oil is not changed, it is easy to cause brake failure, very dangerous, that is, the brake can not be stepped on! Therefore, it is recommended to change it once when driving 25,000-30,000 kilometers, and when you change it, you will find that your brake pump Reed brake fluid is already black and sticky! When changing the brake fluid, it is recommended to check the brake calipers and brake discs together, whether there are micro cracks and small broken places, and if so, it is recommended to replace them immediately

Yes, Toyota cars are replaced with other oils when they are repaired every 40,000 kilometers, and other cars have to ask the master of the corresponding four-S shop for that car.

The brake oil is generally replaced once every 1-2 years, but also according to the climate of your location, the brake oil has a major feature is moisture absorption, and the tide is very easy to contain water in the brake oil, and excessive water can lead to brake failure. At present, most of the markets are, dot3, dot4, dot5 numbers are larger, the higher the boiling point, the better, dot5 racing grade, the quality of brake fluid depends on the boiling point of the oil.

Of course it needs to be changed. There are fixed mileage or schedules.

Need to change, the brake fluid change interval is 2 years or 40,000 kilometers.

This replacement cycle can only be used as a reference to determine whether the brake fluid needs to be replaced, and it is necessary to use a professional instrument to detect the moisture content of the brake fluid. When the measurement result exceeds 3 percent, it is time to change the brake fluid. If it is more than five percent, it must be replaced as soon as possible, because the boiling point at this time is already quite low, which directly affects the braking effect of the car.

Notes:

1. If gasoline, diesel or engine oil is accidentally mixed into the braking system using synthetic brake fluid, the braking effect will also be reduced due to the incompatibility between the oils.

2. If the vehicle travels normally for 40,000 kilometers or the brake fluid is used continuously for more than 2 years, the brake fluid is easy to deteriorate due to long use, so it is necessary to pay attention to timely replacement.

3. Vehicles equipped with brake fluid level alarm devices should observe whether the alarm indicator light is shining at any time, whether the performance of the alarm sensor is good, and when the brake fluid is insufficient, it should be added in time, and the stored brake fluid should be kept between the lowest capacity scale and the highest capacity scale of the calibration.

4. In the normal driving of the vehicle, if the brake is light and heavy, the brake oil should be replaced in time, and the brake system should be cleaned with alcohol before replacement.

5. When the vehicle brakes deviate, the braking system should be comprehensively checked. If it is found that the leather bowl of the sub-pump is too inflated, it means that there may be a problem with the quality of the brake fluid. At this time, you should choose a better quality brake fluid to replace, and replace the leather bowl at the same time.

6. When changing seasons, especially in winter, if you find that the braking effect decreases, it may be that the level of brake fluid is not suitable for the winter climate.

7. Different types and different brands of brake fluid should not be mixed, and specific brands of brake fluid should be added to the brake system with special requirements. Due to the different brands and different types of brake fluid formulations, mixing brake fluids can cause a decrease in brake oil properties. Even those brands that are better miscible and indicate that they can be mixed or substituted are not satisfactory in use, so do not use them for a long time.

8. When water is mixed or inhaled in the brake oil, or the brake fluid is found to have impurities or sediments, it should be replaced or carefully filtered in time, otherwise it will cause insufficient braking pressure, which will affect the braking effect.

The above content refers to Encyclopedia - Automobile Brake Fluid.